package com.heima.wemedia.service.impl;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.common.exception.CustException;
import com.heima.model.common.constants.admin.AdminConstants;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dtos.WmUserDTO;
import com.heima.model.wemedia.pojos.WmUser;
import com.heima.model.wemedia.vos.WmUserVO;
import com.heima.utils.common.AppJwtUtil;
import com.heima.wemedia.mapper.WmUserMapper;
import com.heima.wemedia.service.WmUserService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@Service
public class WmUserServiceImpl extends ServiceImpl<WmUserMapper, WmUser> implements WmUserService {
    @Override
    public ResponseResult login(WmUserDTO dto) {
        //1.校验参数
        String name = dto.getName();
        String password = dto.getPassword();
        if (StringUtils.isBlank(name) || StringUtils.isBlank(password)) {
            CustException.cust(AppHttpCodeEnum.PARAM_INVALID,"用户名或密码不能为空");
        }
        //2.根据用户名查询用户
        WmUser wmUser = this.getOne(Wrappers.<WmUser>lambdaQuery().eq(WmUser::getName, name));
        if (wmUser==null) {
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST,"该用户不存在");
        }
        //3.对比密码
        String inputPwd = DigestUtils.md5DigestAsHex((password + wmUser.getSalt()).getBytes());
        if (inputPwd.equals(wmUser.getPassword())) {
            CustException.cust(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR,"密码错误");
        }
        //4.查看用户状态
        if (AdminConstants.PASS_AUTH!=wmUser.getStatus().intValue()) {
            CustException.cust(AppHttpCodeEnum.LOGIN_STATUS_ERROR);
        }
        //5.修改最近登陆时间
        wmUser.setLoginTime(new Date());
        this.updateById(wmUser);
        //6.颁发token
        String token = AppJwtUtil.getToken(Long.valueOf(wmUser.getId()));
        WmUserVO wmUserVO = new WmUserVO();
        BeanUtils.copyProperties(wmUser,wmUserVO);
        Map<String,Object> map = new HashMap();
        map.put("token",token);
        map.put("user",wmUserVO);
        return ResponseResult.okResult(map);


    }
}